EP1360914B1 - Differential slide for extensible furniture parts - Google Patents

Differential slide for extensible furniture parts Download PDF

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Publication number
EP1360914B1
EP1360914B1 EP03007746A EP03007746A EP1360914B1 EP 1360914 B1 EP1360914 B1 EP 1360914B1 EP 03007746 A EP03007746 A EP 03007746A EP 03007746 A EP03007746 A EP 03007746A EP 1360914 B1 EP1360914 B1 EP 1360914B1
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EP
European Patent Office
Prior art keywords
rail
roller
section
differential
middle rail
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP03007746A
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German (de)
French (fr)
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EP1360914A1 (en
Inventor
Karl Raid
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Fulterer GmbH
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Fulterer GmbH
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40Sliding drawers; Slides or guides therefor
    • A47B88/49Sliding drawers; Slides or guides therefor with double extensible guides or parts
    • A47B88/493Sliding drawers; Slides or guides therefor with double extensible guides or parts with rollers, ball bearings, wheels, or the like
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00General construction of drawers, guides and guide devices
    • A47B2210/0002Guide construction for drawers
    • A47B2210/0008Guide construction for drawers having a roller on an intermediary slide rail between the cabinet rail and the drawer rail

Definitions

  • the invention relates to a differential extension for extendable furniture parts, in particular drawers, drawers and shelves, attachable to a furniture carcass rail, attachable to the extendable furniture part pull-out rail and between the carcass rail and the pull-out rail and between these different running, at least bent over a cranking center rail
  • a differential extension for extendable furniture parts attachable to a furniture carcass rail, attachable to the extendable furniture part pull-out rail and between the carcass rail and the pull-out rail and between these different running, at least bent over a cranking center rail
  • On both sides of the extendable furniture part being provided to enable the mutual displacement of the rails rollers, of which at least one fixed to one at one end to a mounting portion of the center rail and at its other end a bolt head having a roller pin is rotatably supported and by a Recess protrudes in the off-take section.
  • CH 679 735 A1 shows such a differential extension, in which the carcass rail and the center rail C-shaped cross sections and the pull-out rail has a Z-shaped cross-section.
  • a pull-out guide known from DE 28 08 061 A1 has a middle rail consisting of two partial rails, whereby a hollow profile is formed overall.
  • One of the two sub-rails has a C-shaped profile, the other also has upper and lower horizontal webs, wherein the web connecting these two webs is formed double cranked.
  • a pull-out of the type mentioned is known from DE 24 48 335 A1.
  • the center rail consisting of a curved profile has a bend, wherein an upper and a lower mounting portion are connected to each other via a horizontal bent portion.
  • the rollers This extract are rotatably mounted on one side fixed to the mounting portions of the center rail roller bolt. Characterized in that the roller bolts projecting in opposite directions on the one hand from the top, on the other hand, from the lower mounting portion, a tilting of the rollers is to be avoided against each other when under heavy load some deformation of the center rail occurs.
  • a roller bolt each has a Niethals, which projects through a hole in the attachment portion. At the Niethals includes a bolt portion with a larger diameter, on which the roller is rotatably mounted. At the free end of the roller bolt, a roller bearing against an axial displacement bolt head is arranged. The shoulder between the rivet neck and the roller bearing bolt portion transmits the forces exerted on the roller bolt forces to the center rail.
  • this shoulder is limited by the fact that the Niethals must have a certain size in order to be stable enough, and the roller bearing bolt portion may not have too large a diameter so as not to deteriorate the running properties of the roller and the width of the tread not to reduce too much and thus weaken the caster.
  • the roller bearing bolt portion may not have too large a diameter so as not to deteriorate the running properties of the roller and the width of the tread not to reduce too much and thus weaken the caster.
  • the object of the invention is to provide a differential extension of the type mentioned, in which at least one of the rollers, preferably the most heavily loaded, the stability against tilting of the roller is improved, with a simple construction of the extract, the extract also a good Having lateral stiffness. According to the invention, this is achieved by a differential extension guide with the features of claim 1.
  • At least the differential roller is supported in the manner according to the invention, which cooperates with both the carcass rail and with the pull-out rail and ensures the differential movement of the center rail and which is generally the most heavily loaded roller of a differential extension is.
  • a tilting of the so mounted at least one roller is effectively counteracted.
  • no force acting in the sense of a rotation of the center rail about a longitudinal axis of the middle rail is exerted by a roller mounted in this way.
  • the at least one offset portion of the middle rail is disposed in a lying between the upper and the lower edge of the middle rail portion of the center rail, whereby a stable against lateral forces and thereby compact design of the pull-out is possible.
  • the middle rail has first and second offsets, wherein a lower fastening section is connected to a middle section via the first offset section and the middle section is connected to the upper fastening section via the second offset section.
  • this extends the broadened bolt head in plan view to the central portion. It can be achieved in a simple manner by a tongue-shaped extension of the central portion, the support of the widened bolt head.
  • the width of the bolt head supported on the center rail is at least half the width of the roller mounted on this bolt head.
  • rollers can be formed in a simple manner in the same width as the other rollers and be stored in an analogous manner, except that just such a type broadened bolt head is provided.
  • the pull-out rail as known from DE 28 08 061 A1 known per se in the area between the first and the second Abkröpfungsabrough projecting web, which forms upwardly and downwardly directed raceways, and the carcass rail above and below the middle rail lying webs , the down and up facing tracks form.
  • FIGS. 1 to 9 shows an over extension for extracting a pull-out furniture part 1 schematically indicated in FIG. 9 from a furniture carcass 2.
  • the pull-out guide consists of three rails arranged on both sides of the pull-out furniture part 1 in the form of a carcass rail 3 , an extension rail 4 and a middle rail. 5
  • the carcass rail 3 is C-shaped with an upper web 6, a lower web 7 and a connecting them, z. B. the underside of the upper web 6 forms a groove-shaped recessed, downwardly directed track 9 and the top of the lower web 7 forms an upwardly directed track 10th
  • the drawer rail 4 has a fastening web 11, the z. B. can be screwed on holes on the extendable furniture part 1 and which is connected to a projecting between the upper and lower web 6, 7 horizontal web 12, which has at its free end a downwardly directed flanging.
  • the top and the bottom of the horizontal web 12 form upward and downward tracks 13, 14, of which the track 14 is recessed groove-shaped.
  • the middle rail 5 is arranged between the carcass rail 3 and the slide rail 4, the middle rail 5 is arranged.
  • This has upper and lower vertically extending mounting portions 15, 16, on which rollers 17 to 22 are rotatably mounted.
  • the center rail 5 has first and second offsets, wherein the lower mounting portion 16 is connected via a horizontally extending first bend portion 23 with a vertically extending central portion 24 and the central portion 24 is connected via a second horizontally extending bend portion 25 with the upper mounting portion 15.
  • the central portion 24 is thus seen in front view laterally offset from the vertically superimposed upper and lower mounting portions 15, 16. This design of the center rail 5, this has a good lateral stability.
  • rollers 17 to 22 are arranged on the body rail 3 facing side of the mounting portions 15, 16 on the center rail, and in the rollers 17 to 22 adjacent areas of the crank sections 23, 25 are each window-like recesses in the bent sections 23, 25 recessed through which the rollers 17 to 22 protrude.
  • the rotatably mounted in the region of the front end of the middle rail 5 at the lower mounting portion 16 front roller 17 cooperates with the downwardly oriented track 14 of the drawer rail 4.
  • the rotatably mounted in the region of the rear end of the middle rail at the upper mounting portion 15 rear roller 18 acts with the downward track 9th the carcass rail 3 together.
  • differential roller 19 cooperates with both the upward track 10 of the carcass rail 3 and with the downwardly oriented track 14 of the slide rail 4 and provides the differential movement of the center rail 5 when pulling out the drawer rail 4 by half the distance of the drawer rail 4 safely (until the track 14 of the drawer rail leaves the center rail in the region of the over extension).
  • the differential roller 19 is mounted in a known manner with play against its axis.
  • an auxiliary roller 22 is arranged, which is a tilting of the drawer rail 4 in its rear area down (in the retracted or slightly extended state of the drawer) prevented.
  • the rotatably mounted in relation to the longitudinal extent of the center rail 5 in a central region of the middle rail at the upper mounting portion 15 first and second support rollers 20, 21 support the slide rail 4 against pivoting upwards.
  • guide member 26 is provided at the lower mounting portion 16 in the region between the differential roller 19 and the front roller 17 by means of a bolt 27 rigidly fixed (non-rotatable) , instead of this rigid guide member 26 could also be present a role.
  • this rigid guide member 26 could also be present a role.
  • the first support roller 20 and / or the auxiliary roller 22 could be dispensed with - with certain restrictions on the functionality of the extension.
  • the rollers 17 to 22 are rotatably supported by roller bolts 28 on the center rail 5.
  • the roller bolts 28 each have a rivet neck 29 (see Fig. 5), which passes through a corresponding hole in the middle rail 5 and riveted by means of the roller pin 28 on the center rail 5.
  • At the Niethals 29 includes a bolt portion 30 with an enlarged diameter, whereby between the Niethals 29 and the bolt portion 30, a shoulder 31 is formed, which is supported on the central rail in the area surrounding the bore.
  • the respective roller 17 to 22 is rotatably mounted.
  • the differential roller 19 and the auxiliary roller 22 in this case have a relative large clearance relative to the bolt portion 30 to allow a certain displacement of these rollers in the vertical direction.
  • the bolt portion 30 To support the rollers 17 to 22 by supporting against an axial displacement of the rollers 17 to 22 on the bolt portion 30 includes the bolt portion 30, a bolt head 32, 32 'with an enlarged compared to the bolt portion 30 diameter.
  • the roller pin 28 for supporting the differential roller 19 and the rear roller 18 of the bolt head 32 ' is widened formed, wherein the width b of the bolt head 32' in the embodiment shown more than half the width B of the differential roller 19 and the rear roller 18 , Seen in plan view, the widened bolt head 32 'extends to the central portion 24 of the center rail.
  • FIGS. 10 to 13 show a somewhat modified embodiment of a middle rail 5, which is designed here for a full extension.
  • first support roller 20 is here in the central region of the longitudinal extent of the middle rail 5 is provided.
  • an additional support roller 33 is rotatably mounted behind the differential roller 19. This is rotatably supported without play on its roller pin 28 and only to cooperate with the upwardly directed track 10 of the carcass rail 3 and slightly smaller than the differential roller 19.
  • the additional support roller 33 is used to relieve the differential roller 19 at high loads.
  • This additional support roller 33 also has a broadened bolt head 32 ', which is supported in the region of the lower mounting portion 16 opposite edge of the recess in the first off-take portion 23 on one side of the center rail 5, at the lower edge 34' of the central portion 24th
  • the bolt head 32 ' for example, in the region of the edge of the recess, if this edge of the recess is still in the region of the Abkröpfungsabêtes 23, 25 could be supported by the Abkröpfungsabrough 23, 25.
  • the rollers 17 to 22 enforce through window-like recesses in these horizontal webs.
  • the rollers 18, 20 and optionally 21 rotatably mounted on one side of the middle rail and the rollers 17, 19, 22 and optionally 33 on the other side of the center rail would be and the roller pins of the arranged on the different sides of the center rail rollers would extend in different directions.
  • the center rail in particular due to the improved support in particular the differential roller 19 could also be formed shorter than the carcass rail and the pull-out rail, wherein the distance of the rear roller 18 could be reduced to the differential roller 19.
  • a kinematic reversal of the illustrated embodiments of pull-out guides would be conceivable and possible, in which case the cabinet rail would form the pull-out rail and the pull-out rail the carcass rail. Such kinematic reversal is considered to be equivalent to the embodiments shown.

Landscapes

  • Drawers Of Furniture (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Ladders (AREA)
  • Vending Machines For Individual Products (AREA)
  • Support Devices For Sliding Doors (AREA)

Abstract

Differential drawing guide has a roller bolt supported in the region of the edge of the recess in a bent section lying opposite a fixing section on one side of a middle rail (5) for running rollers (18, 19). Preferred Features: The bolt head of the roller bolt of a differential roller rotating on the middle rail is supported on one side of the middle rail. The bent section is arranged in a region of the middle rail lying between the upper and lower edge of the middle rail.

Description

Die Erfindung betrifft eine Differentialausziehführung für ausziehbare Möbelteile, insbesondere Schubläden, Schubkästen und Tablare, mit einer am Möbelkorpus befestigbaren Korpusschiene, einer am ausziehbaren Möbelteil befestigbaren Auszugschiene und einer zwischen der Korpusschiene und der Auszugschiene angeordneten und zwischen diesen differentiell laufenden, mindestens über einen Abkröpfungsabschnitt abgekröpften Mittelschiene an beiden Seiten des ausziehbaren Möbelteils, wobei zur Ermöglichung der gegenseitigen Verschiebung der Schienen Laufrollen vorgesehen sind, von denen zumindest eine auf einem an seinem einen Ende an einem Befestigungsabschnitt der Mittelschiene festgelegten und an seinem anderen Ende einen Bolzenkopf aufweisenden Rollenbolzen drehbar gelagert ist und durch eine Ausnehmung im Abkröpfungsabschnitt ragt.The invention relates to a differential extension for extendable furniture parts, in particular drawers, drawers and shelves, attachable to a furniture carcass rail, attachable to the extendable furniture part pull-out rail and between the carcass rail and the pull-out rail and between these different running, at least bent over a cranking center rail On both sides of the extendable furniture part, being provided to enable the mutual displacement of the rails rollers, of which at least one fixed to one at one end to a mounting portion of the center rail and at its other end a bolt head having a roller pin is rotatably supported and by a Recess protrudes in the off-take section.

Rollenbestückte Differentialauszüge sind in unterschiedlichen Ausführungsformen bekannt. Beispielsweise zeigt die CH 679 735 A1 einen solchen Differentialauszug, bei dem die Korpusschiene und die Mittelschiene C-förmige Querschnitte und die Auszugschiene einen Z-förmigen Querschnitt aufweist. Zur Erhöhung der Stabilität der Ausziehführung, insbesondere in seitlicher Richtung, weist eine aus der DE 28 08 061 A1 bekannte Ausziehführung eine aus zwei Teilschienen bestehende Mittelschiene auf, wodurch insgesamt ein Hohlprofil gebildet wird. Eine der beiden Teilschienen weist ein C-förmiges Profil auf, die andere besitzt ebenfalls obere und untere Horizontalstege, wobei der diese beiden Stege verbindende Steg doppelt abgekröpft ausgebildet ist. Die als Hohlprofil ausgebildete Mittelschiene nimmt die durch entsprechende Ausnehmungen aus der Mittelschiene herausragenden Laufrollen auf, welche auf an den beiden Teilschienen ausgebildeten, aufeinander zuragenden und miteinander fluchtenden Kragen drehbar gelagert sind. Aufgrund der aus den beiden Teilschienen bestehenden Mittelschiene ist dieser Differentialauszug relativ materialaufwendig und schwer. Aus der US 3 050 348 A ist weiters eine Differentialausziehführung bekannt, bei der die Rollenbolzen der Laufrollen der Mittelschiene beidseitig festgelegt sind.Roller-fitted differential extensions are known in different embodiments. For example, CH 679 735 A1 shows such a differential extension, in which the carcass rail and the center rail C-shaped cross sections and the pull-out rail has a Z-shaped cross-section. To increase the stability of the pull-out guide, in particular in the lateral direction, a pull-out guide known from DE 28 08 061 A1 has a middle rail consisting of two partial rails, whereby a hollow profile is formed overall. One of the two sub-rails has a C-shaped profile, the other also has upper and lower horizontal webs, wherein the web connecting these two webs is formed double cranked. Trained as a hollow profile center rail takes on the outstanding by corresponding recesses from the center rail rollers, which are rotatably mounted on trained on the two sub-rails, aufeinanderagenden and mutually aligned collar. Due to the existing of the two sub-rails center rail this differential is relatively expensive and heavy material. From US 3 050 348 A, a differential extension guide is further known in which the roller bolts of the rollers of the center rail are fixed on both sides.

Eine Ausziehführung der eingangs genannten Art ist aus der DE 24 48 335 A1 bekannt. Die aus einem gebogenen Profil bestehende Mittelschiene weist eine Abkröpfung auf, wobei ein oberer und ein unterer Befestigungsabschnitt über einen horizontalen Abkröpfungsabschnitt miteinander verbunden sind. Die Laufrollen dieses Auszugs sind auf einseitig an den Befestigungsabschnitten der Mittelschiene festgelegten Rollenbolzen drehbar gelagert. Dadurch, daß die Rollenbolzen nach entgegengesetzten Richtungen einerseits vom oberen, andererseits vom unteren Befestigungsabschnitt vorragen, soll ein Verkanten der Rollen gegeneinander vermieden werden, wenn bei starker Belastung eine gewisse Deformation der Mittelschiene auftritt. Allerdings sind die verschiedenen Laufrollen eines Auszugs insbesondere im ausgezogenen Zustand unterschiedlich stark belastet, so daß die über die Rollenbolzen auf die Mittelschiene übertragenen Kräfte im Bereich der verschiedenen Laufrollen unterschiedlich starke Deformationen der Mittelschiene hervorrufen können. Weiters können gewisse Verbiegungen der Rollenbolzen gegenüber der Befestigungsabschnitte auftreten. Ein Rollenbolzen weist jeweils einen Niethals auf, der durch eine Bohrung im Befestigungsabschnitt ragt. An den Niethals schließt ein Bolzenabschnitt mit einem größeren Durchmesser an, auf dem die Rolle drehbar gelagert ist. Am freien Ende des Rollenbolzens ist ein die Rolle gegen eine achsiale Verschiebung abstützender Bolzenkopf angeordnet. Die Schulter zwischen dem Niethals und dem die Rolle lagernden Bolzenabschnitt überträgt die auf den Rollenbolzen ausgeübten Kräfte auf die Mittelschiene. Die Größe dieser Schulter ist allerdings dadurch begrenzt, daß der Niethals eine gewisse Größe aufweisen muß, um stabil genug zu sein, und der die Rolle lagernde Bolzenabschnitt keinen zu großen Durchmesser aufweisen darf, um die Laufeigenschaften der Laufrolle nicht zu verschlechtern und die Breite des Laufkranzes nicht zu stark zu verringern und damit die Laufrolle zu schwächen. Durch eine Verbiegung der Rollenbolzen bzw. der Mittelschiene kommt es aber zu einer Verschlechterung der Laufeigenschaften und zu einer stärkeren Abnutzung des Auszugs.A pull-out of the type mentioned is known from DE 24 48 335 A1. The center rail consisting of a curved profile has a bend, wherein an upper and a lower mounting portion are connected to each other via a horizontal bent portion. The rollers This extract are rotatably mounted on one side fixed to the mounting portions of the center rail roller bolt. Characterized in that the roller bolts projecting in opposite directions on the one hand from the top, on the other hand, from the lower mounting portion, a tilting of the rollers is to be avoided against each other when under heavy load some deformation of the center rail occurs. However, the different rollers of an extract are particularly heavily loaded in the extended state, so that the forces transmitted via the roller bolt on the central rail forces in the range of different rollers can cause different degrees of deformation of the center rail. Furthermore, certain bending of the roller bolt with respect to the mounting portions may occur. A roller bolt each has a Niethals, which projects through a hole in the attachment portion. At the Niethals includes a bolt portion with a larger diameter, on which the roller is rotatably mounted. At the free end of the roller bolt, a roller bearing against an axial displacement bolt head is arranged. The shoulder between the rivet neck and the roller bearing bolt portion transmits the forces exerted on the roller bolt forces to the center rail. The size of this shoulder, however, is limited by the fact that the Niethals must have a certain size in order to be stable enough, and the roller bearing bolt portion may not have too large a diameter so as not to deteriorate the running properties of the roller and the width of the tread not to reduce too much and thus weaken the caster. By bending the roller bolt or the center rail but it comes to a deterioration of the running properties and greater wear of the drawer.

Aufgabe der Erfindung ist es, eine Differentialausziehführung der eingangs genannten Art bereitzustellen, bei der zumindest bei einer der Laufrollen, vorzugsweise der höchstbelasteten, die Stabilität gegenüber einer Verkantung der Laufrolle verbessert ist, dies bei einem einfachen Aufbau des Auszuges, wobei der Auszug auch eine gute Seitensteifigkeit aufweist. Erfindungsgemäß gelingt dies durch eine Differentialausziehführung mit den Merkmalen des Patentanspruchs 1.The object of the invention is to provide a differential extension of the type mentioned, in which at least one of the rollers, preferably the most heavily loaded, the stability against tilting of the roller is improved, with a simple construction of the extract, the extract also a good Having lateral stiffness. According to the invention, this is achieved by a differential extension guide with the features of claim 1.

Vorzugsweise ist zumindest die Differentialrolle auf die erfindungsgemäße Weise abgestützt, die sowohl mit der Korpusschiene als auch mit der Auszugschiene zusammenwirkt und den differentiellen Lauf der Mittelschiene sicherstellt und bei der es sich im Allgemeinen um die höchstbelastete Laufrolle eines Differentialauszuges handelt. Durch die erfindungsgemäße Abstützung wird einer Verkantung der so gelagerten mindestens einen Laufrolle effektiv entgegengewirkt. Auch wird durch eine auf diese Weise gelagerte Laufrolle keine im Sinne einer Verdrehung der Mittelschiene um eine Längsachse der Mittelschiene wirkende Kraft ausgeübt.Preferably, at least the differential roller is supported in the manner according to the invention, which cooperates with both the carcass rail and with the pull-out rail and ensures the differential movement of the center rail and which is generally the most heavily loaded roller of a differential extension is. By the support according to the invention a tilting of the so mounted at least one roller is effectively counteracted. Also, no force acting in the sense of a rotation of the center rail about a longitudinal axis of the middle rail is exerted by a roller mounted in this way.

In einer zweckmäßigen Ausgestaltung der Erfindung kann auch der Bolzenkopf des Rollenbolzens einer drehbar an der Mittelschiene gelagerten, hinteren Laufrolle, welche mit der Korpusschiene zusammenwirkt, einseitig an der Mittelschiene auf die erfindungsgemäße Weise abgestützt, welche ebenfalls eine hochbelastete Rolle der Ausziehführung darstellt.In an advantageous embodiment of the invention, the bolt head of the roller bolt of a rotatably mounted on the center rail, rear roller, which cooperates with the carcass rail, supported on one side on the center rail on the inventive way, which also represents a highly loaded role of pull-out.

Günstigerweise ist der mindestens eine Abkröpfungsabschnitt der Mittelschiene in einem zwischen dem oberen und dem unteren Rand der Mittelschiene liegenden Bereich der Mittelschiene angeordnet, wodurch eine gegenüber Seitenkräften stabile und dabei kompakte Ausbildung der Ausziehführung ermöglicht wird. hierbei ist es vorteilhaft, wenn die Mittelschiene erste und zweite Abkröpfungen aufweist, wobei ein unterer Befestigungsabschnitt über den ersten Abkröpfungsabschnitt mit einem Mittelabschnitt und der Mittelabschnitt über den zweiten Abkröpfungsabschnitt mit dem oberen Befestigungsabschnitt verbunden ist. Bevorzugterweise erstreckt sich hierbei der verbreiterte Bolzenkopf in Draufsicht gesehen bis zum Mittelabschnitt. Es kann dadurch die Abstützung des verbreiterten Bolzenkopfs in einfacher Weise durch eine zungenförmige Verlängerung des Mittelabschnitts erreicht werden.Conveniently, the at least one offset portion of the middle rail is disposed in a lying between the upper and the lower edge of the middle rail portion of the center rail, whereby a stable against lateral forces and thereby compact design of the pull-out is possible. It is advantageous in this case if the middle rail has first and second offsets, wherein a lower fastening section is connected to a middle section via the first offset section and the middle section is connected to the upper fastening section via the second offset section. Preferably, this extends the broadened bolt head in plan view to the central portion. It can be achieved in a simple manner by a tongue-shaped extension of the central portion, the support of the widened bolt head.

Bevorzugterweise beträgt die Breite des sich an der Mittelschiene abstützenden Bolzenkopfs mindestens die halbe Breite der auf diesem Bolzenkopf gelagerten Laufrolle. Auf die erfindungsgemäße Weise abgestützte Laufrollen können dadurch in einfacher Weise in der gleichen Breite wie die anderen Laufrollen ausgebildet sein und in analoger Weise gelagert sein, nur dass eben ein solcher Art verbreiterter Bolzenkopf vorgesehen ist.Preferably, the width of the bolt head supported on the center rail is at least half the width of the roller mounted on this bolt head. Supported in the manner according to the invention rollers can be formed in a simple manner in the same width as the other rollers and be stored in an analogous manner, except that just such a type broadened bolt head is provided.

Vorteilhafterweise weist die Auszugschiene wie aus der DE 28 08 061 A1 an sich bekannt einen in den Bereich zwischen den ersten und den zweiten Abkröpfungsabschnitt ragenden Steg, der nach oben und nach unten gerichtete Laufbahnen ausbildet, und die Korpusschiene oberhalb und unterhalb der Mittelschiene liegende Stege auf, die nach unten und nach oben gerichtete Laufbahnen ausbilden. Es wird hierdurch die Ausbildung eines kompakten, relativ stabilen und dabei vergleichsweise einfach herstellbaren Auszugs ermöglicht, wobei bevorzugterweise der Rollenbolzen der Differentialrolle am unteren Befestigungsabschnitt und der Rollenbolzen der hinteren Laufrolle einseitig am oberen Befestigungsabschnitt festgelegt sind. Zur Herstellung eines Differentialauszuges mit einer seitenstabilen, abgekröpften Mittelschiene, wobei der Auszug eine relativ geringe Breite aufweist und einfach fertigbar ist, ist es weiters bevorzugt, dass alle Laufrollen auf der der Korpusschiene zugewandten Seite der Mittelschiene drehbar an der Mittelschiene gelagert sind.Advantageously, the pull-out rail as known from DE 28 08 061 A1 known per se in the area between the first and the second Abkröpfungsabschnitt projecting web, which forms upwardly and downwardly directed raceways, and the carcass rail above and below the middle rail lying webs , the down and up facing tracks form. This makes it possible to form a compact, relatively stable and relatively easy to produce drawer, wherein preferably the roller pin of the differential roller at the lower attachment portion and the roller pin of the rear roller are fixed on one side at the upper attachment portion. For producing a differential extension with a side-stable, cranked center rail, wherein the extract has a relatively small width and is easily manufacturable, it is further preferred that all rollers are rotatably mounted on the middle rail of the rail side facing the rail rail.

Weitere Vorteile und Einzelheiten der Erfindung werden im Folgenden anhand der in der beiliegenden Zeichnung dargestellten Ausführungsbeispiele der Erfindung erläutert. In der Zeichnung zeigen:

Fig. 1
eine perspektivische Darstellung der zusammengesetzten Schienen im ausgezogenen Zustand der Ausziehführung;
Fig. 2
die Mittelschiene in einer Fig. 2 entsprechenden Darstellung;
Fig. 3
eine Seitenansicht der Mittelschiene;
Fig. 4
eine Seitenansicht der Mittelschiene von der gegenüberliegenden Seite;
Fig. 5
einen Schnitt entlang der Linie A-A von Fig. 4;
Fig. 6
eine perspektivische Darstellung der Mittelschiene aus einem Blickwinkel, aus dem die in Fig. 4 sichtbare Seitenfläche sichtbar ist;
Fig. 7
ein Detail B von Fig. 6;
Fig. 8
ein Detail C von Fig. 6;
Fig. 9
eine Vorderansicht der zusammengesetzten Schienen im eingefahrenen Zustand des Auszuges;
Fig. 10
eine Seitenansicht einer Mittelschiene (entsprechend der Seitenansicht von Fig. 4) einer weiteren Ausführungsvariante der Erfindung;
Fig. 11
eine perspektivische Darstellung der Mittelschiene (aus einem Fig. 6 entsprechenden Blickwinkel);
Fig. 12
ein Detail E von Fig. 11 und
Fig. 13
ein Detail F von Fig. 11.
Further advantages and details of the invention are explained below with reference to the embodiments of the invention shown in the accompanying drawings. In the drawing show:
Fig. 1
a perspective view of the assembled rails in the extended state of the pull-out;
Fig. 2
the center rail in a representation corresponding to FIG. 2;
Fig. 3
a side view of the center rail;
Fig. 4
a side view of the center rail from the opposite side;
Fig. 5
a section along the line AA of Fig. 4;
Fig. 6
a perspective view of the center rail from an angle from which the side surface visible in Figure 4 is visible.
Fig. 7
a detail B of Fig. 6;
Fig. 8
a detail C of Fig. 6;
Fig. 9
a front view of the assembled rails in the retracted state of the extract;
Fig. 10
a side view of a center rail (corresponding to the side view of Fig. 4) of a further embodiment of the invention;
Fig. 11
a perspective view of the center rail (from a Fig. 6 corresponding angle);
Fig. 12
a detail E of Fig. 11 and
Fig. 13
a detail F of FIG. 11.

Das in den Fig. 1 bis 9 dargestellte Ausführungsbeispiel zeigt einen Überauszug zum Ausziehen eines in Fig. 9 schematisch angedeuteten ausziehbaren Möbelteils 1 aus einem Möbelkorpus 2. Die Ausziehführung besteht aus jeweils drei zu beiden Seiten des ausziehbaren Möbelteils 1 angeordneten Schienen in Form einer Korpusschiene 3, einer Auszugschiene 4 und einer Mittelschiene 5.The embodiment shown in FIGS. 1 to 9 shows an over extension for extracting a pull-out furniture part 1 schematically indicated in FIG. 9 from a furniture carcass 2. The pull-out guide consists of three rails arranged on both sides of the pull-out furniture part 1 in the form of a carcass rail 3 , an extension rail 4 and a middle rail. 5

Die Korpusschiene 3 ist C-förmig ausgebildet mit einem oberen Steg 6, einem unteren Steg 7 und einem diese verbindenden, z. B. über Bohrungen am Möbelkorpus 2 anschraubbaren vertikalen Seitensteg 8. Die Unterseite des oberen Steges 6 bildet eine rinnenförmig vertiefte, nach unten gerichtete Laufbahn 9 und die Oberseite des unteren Steges 7 bildet eine nach oben gerichtete Laufbahn 10.The carcass rail 3 is C-shaped with an upper web 6, a lower web 7 and a connecting them, z. B. the underside of the upper web 6 forms a groove-shaped recessed, downwardly directed track 9 and the top of the lower web 7 forms an upwardly directed track 10th

Die Auszugschiene 4 weist einen Befestigungssteg 11 auf, der z. B. über Bohrungen am ausziehbaren Möbelteil 1 anschraubbar ist und der mit einem zwischen den oberen und unteren Steg 6, 7 ragenden horizontalen Steg 12 verbunden ist, der an seinem freien Ende eine nach unten gerichtete Umbördelung aufweist. Die Oberseite und die Unterseite des horizontalen Stegs 12 bilden nach oben gerichtete und nach unten gerichtete Laufbahnen 13, 14, von denen die Laufbahn 14 rinnenförmig vertieft ist.The drawer rail 4 has a fastening web 11, the z. B. can be screwed on holes on the extendable furniture part 1 and which is connected to a projecting between the upper and lower web 6, 7 horizontal web 12, which has at its free end a downwardly directed flanging. The top and the bottom of the horizontal web 12 form upward and downward tracks 13, 14, of which the track 14 is recessed groove-shaped.

Zwischen der Korpusschiene 3 und der Auszugschiene 4 ist die Mittelschiene 5 angeordnet. Diese besitzt obere und untere vertikal verlaufende Befestigungsabschnitte 15, 16, an denen Laufrollen 17 bis 22 drehbar gelagert sind. Die Mittelschiene 5 weist erste und zweite Abkröpfungen auf, wobei der untere Befestigungsabschnitt 16 über einen horizontal verlaufenden ersten Abkröpfungsabschnitt 23 mit einem vertikal verlaufenden Mittelabschnitt 24 verbunden ist und der Mittelabschnitt 24 über einen zweiten horizontal verlaufenden Abkröpfungsabschnitt 25 mit dem oberen Befestigungsabschnitt 15 verbunden ist. Der Mittelabschnitt 24 ist somit in Stirnansicht gesehen seitlich gegenüber den vertikal übereinander liegenden oberen und unteren Befestigungsabschnitten 15, 16 versetzt. Durch diese Ausbildung der Mittelschiene 5 weist diese eine gute Seitenstabilität auf. Die Laufrollen 17 bis 22 sind auf der der Korpusschiene 3 zugewandten Seite der Befestigungsabschnitte 15, 16 an der Mittelschiene angeordnet, und in den den Laufrollen 17 bis 22 benachbarten Bereichen der Abkröpfungsabschnitte 23, 25 sind jeweils fensterartige Ausnehmungen in den Abkröpfungsabschnitten 23, 25 ausgespart, durch welche die Laufrollen 17 bis 22 ragen.Between the carcass rail 3 and the slide rail 4, the middle rail 5 is arranged. This has upper and lower vertically extending mounting portions 15, 16, on which rollers 17 to 22 are rotatably mounted. The center rail 5 has first and second offsets, wherein the lower mounting portion 16 is connected via a horizontally extending first bend portion 23 with a vertically extending central portion 24 and the central portion 24 is connected via a second horizontally extending bend portion 25 with the upper mounting portion 15. The central portion 24 is thus seen in front view laterally offset from the vertically superimposed upper and lower mounting portions 15, 16. This design of the center rail 5, this has a good lateral stability. The rollers 17 to 22 are arranged on the body rail 3 facing side of the mounting portions 15, 16 on the center rail, and in the rollers 17 to 22 adjacent areas of the crank sections 23, 25 are each window-like recesses in the bent sections 23, 25 recessed through which the rollers 17 to 22 protrude.

Die im Bereich des vorderen Endes der Mittelschiene 5 am unteren Befestigungsabschnitt 16 drehbar gelagerte vordere Laufrolle 17 wirkt mit der nach unten gerichteten Laufbahn 14 der Auszugschiene 4 zusammen. Die im Bereich des rückseitigen Endes der Mittelschiene am oberen Befestigungsabschnitt 15 drehbar gelagerte hintere Laufrolle 18 wirkt mit der nach unten gerichteten Laufbahn 9 der Korpusschiene 3 zusammen. Die in Bezug auf die Längsausdehnung der Mittelschiene 5 in einem mittleren Bereich der Mittelschiene am unteren Befestigungsabschnitt 16 drehbar gelagerte Differentialrolle 19 wirkt sowohl mit der nach oben gerichteten Laufbahn 10 der Korpusschiene 3 als auch mit der nach unten gerichteten Laufbahn 14 der Auszugschiene 4 zusammen und stellt den differentiellen Lauf der Mittelschiene 5 beim Ausziehen der Auszugschiene 4 um jeweils die halbe Wegstrecke der Auszugschiene 4 sicher (bis die Laufbahn 14 der Auszugschiene die Mittelschiene im Bereich des Überauszugs verläßt). Hierbei ist die Differentialrolle 19 in bekannter Weise mit Spiel gegenüber ihrer Achse gelagert.The rotatably mounted in the region of the front end of the middle rail 5 at the lower mounting portion 16 front roller 17 cooperates with the downwardly oriented track 14 of the drawer rail 4. The rotatably mounted in the region of the rear end of the middle rail at the upper mounting portion 15 rear roller 18 acts with the downward track 9th the carcass rail 3 together. The in relation to the longitudinal extent of the center rail 5 in a central region of the center rail at the lower mounting portion 16 rotatably mounted differential roller 19 cooperates with both the upward track 10 of the carcass rail 3 and with the downwardly oriented track 14 of the slide rail 4 and provides the differential movement of the center rail 5 when pulling out the drawer rail 4 by half the distance of the drawer rail 4 safely (until the track 14 of the drawer rail leaves the center rail in the region of the over extension). Here, the differential roller 19 is mounted in a known manner with play against its axis.

Im zwischen der Differentialrolle 19 und der hinteren Laufrolle 18 gelegenen Bereich der Längserstreckung der Mittelschiene ist am unteren Befestigungsabschnitt 16 eine Hilfsrolle 22 angeordnet, die ein Abkippen der Auszugschiene 4 in ihrem rückseitigen Bereich nach unten (im eingefahrenen bzw. nur wenig ausgezogenen Zustand des Auszugs) verhindert. Die in Bezug auf die Längserstreckung der Mittelschiene 5 in einem mittleren Bereich der Mittelschiene am oberen Befestigungsabschnitt 15 drehbar gelagerten ersten und zweiten Stützrollen 20, 21 stützen die Auszugschiene 4 gegen ein Verschwenken nach oben ab. Zur Seitenführung der Auszugschiene im Bereich des Überauszugs ist weiters ein mit der rillenförmigen nach unten gerichteten Laufbahn 14 zusammenwirkendes Führungsteil 26 vorgesehen, das am unteren Befestigungsabschnitt 16 im Bereich zwischen der Differentialrolle 19 und der vorderen Laufrolle 17 mittels eines Bolzens 27 starr (unverdrehbar) festgelegt ist. Anstelle dieses starren Führungsteils 26 könnte auch eine Rolle vorhanden sein. Unterschiedliche andere Modifikationen der Anordnung und Anzahl der Laufrollen sind denkbar und möglich. So könnte beispielsweise auch - bei gewissen Einschränkungen der Funktionalität des Auszuges - die erste Stützrolle 20 und/oder die Hilfsrolle 22 entfallen.In located between the differential roller 19 and the rear roller 18 portion of the longitudinal extent of the middle rail at the lower mounting portion 16, an auxiliary roller 22 is arranged, which is a tilting of the drawer rail 4 in its rear area down (in the retracted or slightly extended state of the drawer) prevented. The rotatably mounted in relation to the longitudinal extent of the center rail 5 in a central region of the middle rail at the upper mounting portion 15 first and second support rollers 20, 21 support the slide rail 4 against pivoting upwards. For lateral guidance of the pull-out rail in the region of the over extension further cooperating with the groove-shaped downwardly directed track 14 guide member 26 is provided at the lower mounting portion 16 in the region between the differential roller 19 and the front roller 17 by means of a bolt 27 rigidly fixed (non-rotatable) , Instead of this rigid guide member 26 could also be present a role. Various other modifications of the arrangement and number of rollers are conceivable and possible. Thus, for example, the first support roller 20 and / or the auxiliary roller 22 could be dispensed with - with certain restrictions on the functionality of the extension.

Die Laufrollen 17 bis 22 sind mittels Rollenbolzen 28 drehbar an der Mittelschiene 5 gelagert. Die Rollenbolzen 28 weisen jeweils einen Niethals 29 auf (vgl. Fig. 5), der eine entsprechende Bohrung in der Mittelschiene 5 durchsetzt und mittels dem der Rollenbolzen 28 an der Mittelschiene 5 angenietet ist. An den Niethals 29 schließt ein Bolzenabschnitt 30 mit einem vergrößerten Durchmesser an, wodurch zwischen dem Niethals 29 und dem Bolzenabschnitt 30 eine Schulter 31 gebildet wird, die sich an der Mittelschiene im die Bohrung umgebenden Bereich abstützt. Auf dem Bolzenabschnitt 30 ist die jeweilige Laufrolle 17 bis 22 drehbar gelagert. Die Differentialrolle 19 und die Hilfsrolle 22 weisen hierbei ein relativ großes Spiel gegenüber dem Bolzenabschnitt 30 auf, um eine gewisse Verschiebung dieser Rollen in vertikaler Richtung zu ermöglichen. Zur Halterung der Laufrollen 17 bis 22 durch Abstützung gegen eine achsiale Verschiebung der Laufrollen 17 bis 22 auf dem Bolzenabschnitt 30 schließt an den Bolzenabschnitt 30 ein Bolzenkopf 32, 32' mit einem im Vergleich zum Bolzenabschnitt 30 vergrößerten Durchmesser an. Bei den Rollenbolzen 28 zur Lagerung der Differentialrolle 19 sowie der hinteren Laufrolle 18 ist der Bolzenkopf 32' verbreitert ausgebildet, wobei die Breite b des Bolzenkopfs 32' beim gezeigten Ausführungsbeispiel mehr als die Hälfte der Breite B der Differentialrolle 19 bzw. der hinteren Laufrolle 18 beträgt. In Draufsicht gesehen erstreckt sich der verbreiterte Bolzenkopf 32' bis zum Mittelabschnitt 24 der Mittelschiene.The rollers 17 to 22 are rotatably supported by roller bolts 28 on the center rail 5. The roller bolts 28 each have a rivet neck 29 (see Fig. 5), which passes through a corresponding hole in the middle rail 5 and riveted by means of the roller pin 28 on the center rail 5. At the Niethals 29 includes a bolt portion 30 with an enlarged diameter, whereby between the Niethals 29 and the bolt portion 30, a shoulder 31 is formed, which is supported on the central rail in the area surrounding the bore. On the pin portion 30, the respective roller 17 to 22 is rotatably mounted. The differential roller 19 and the auxiliary roller 22 in this case have a relative large clearance relative to the bolt portion 30 to allow a certain displacement of these rollers in the vertical direction. To support the rollers 17 to 22 by supporting against an axial displacement of the rollers 17 to 22 on the bolt portion 30 includes the bolt portion 30, a bolt head 32, 32 'with an enlarged compared to the bolt portion 30 diameter. When the roller pin 28 for supporting the differential roller 19 and the rear roller 18 of the bolt head 32 'is widened formed, wherein the width b of the bolt head 32' in the embodiment shown more than half the width B of the differential roller 19 and the rear roller 18 , Seen in plan view, the widened bolt head 32 'extends to the central portion 24 of the center rail.

Der über die Differentialrolle 19 bzw. die hintere Laufrolle 18 vorstehende Bolzenkopf 32' stützt sich im Bereich des dem Befestigungsabschnitt 15, 16 gegenüberliegenden Randes der von der Differentialrolle 19 bzw. hinteren Laufrolle 18 durchsetzten Ausnehmung im ersten bzw. zweiten Abkröpfungsabschnitt 23, 25 ab, und zwar beim gezeigten Ausführungsbeispiel jeweils am Rand 34, 34' des Mittelabschnitts 24. Für die Differentialrolle 19 schließt dieser hier untere Rand 34' des Mittelabschnitts etwa in der gleichen Höhe mit dem ersten Abkröpfungsabschnitt 23 ab. Für die hintere Laufrolle 18 ist der Mittelabschnitt im Bereich der hinteren Laufrolle 18 bzw. der von ihr durchsetzten Öffnung im zweiten Abkröpfungsabschnitt 25 etwas nach oben über die Höhe des zweiten Abkröpfungsabschnitts 25 zungenförmig verlängert. Zur Verbesserung der Anlage des Bolzenkopfs 32' am Rand 34' des Mittelabschnitts 24 bzw. am Rand 34 der Verlängerung des Mittelabschnitts 24 kann im Anlagebereich eine muldenförmige Vertiefung am Rand 34, 34' ausgebildet sein.The over the differential roller 19 and the rear roller 18 protruding bolt head 32 'is supported in the region of the mounting portion 15, 16 opposite edge of the differential roller 19 and rear roller 18 interspersed recess in the first and second Abkröpfungsabschnitt 23, 25, in the embodiment shown, in each case at the edge 34, 34 'of the middle section 24. For the differential roller 19, this lower edge 34' of the central section terminates approximately at the same height with the first offset section 23. For the rear roller 18, the middle section in the region of the rear roller 18 or the opening penetrated by it in the second offset section 25 is slightly extended upward in a tongue-shaped manner over the height of the second offset section 25. To improve the installation of the bolt head 32 'at the edge 34' of the central portion 24 or at the edge 34 of the extension of the central portion 24 may be formed in the contact area a trough-shaped depression on the edge 34, 34 '.

In den Fig. 10 bis 13 ist eine etwas modifizierte Ausführungsform einer Mittelschiene 5 dargestellt, die hier für einen Vollauszug ausgebildet ist. Am oberen Befestigungsabschnitt 15 ist hier im mittleren Bereich der Längsausdehnung der Mittelschiene 5 nur eine etwa oberhalb der Differentialrolle 19 angeordnete erste Stützrolle 20 vorgesehen. Durch entsprechende Anschläge wird das Ausziehen der Auszugschiene 4 so begrenzt, daß die Laufbahn 13 nicht über die erste Stützrolle 20 hinaus ausgezogen werden kann. Am unteren Befestigungsabschnitt 16 ist hinter der Differentialrolle 19 eine zusätzliche Stützrolle 33 drehbar gelagert. Diese ist ohne Spiel auf ihrem Rollenbolzen 28 drehbar gelagert und nur zum Zusammenwirken mit der nach oben gerichteten Laufbahn 10 der Korpusschiene 3 vorgesehen und etwas kleiner als die Differentialrolle 19. Die zusätzliche Stützrolle 33 dient zur Entlastung der Differentialrolle 19 bei hohen Lasten. Diese zusätzliche Stützrolle 33 weist ebenfalls einen verbreiterten Bolzenkopf 32' auf, der im Bereich des dem unteren Befestigungsabschnitt 16 gegenüberliegenden Randes der Ausnehmung im ersten Abkröpfungsabschnitt 23 einseitig von der Mittelschiene 5 abgestützt wird, und zwar am unteren Rand 34' des Mittelabschnitts 24.FIGS. 10 to 13 show a somewhat modified embodiment of a middle rail 5, which is designed here for a full extension. At the upper attachment portion 15, only one about the differential roller 19 arranged first support roller 20 is here in the central region of the longitudinal extent of the middle rail 5 is provided. By appropriate stops the extraction of the drawer rail 4 is limited so that the track 13 can not be extended beyond the first support roller 20 addition. At the lower attachment portion 16, an additional support roller 33 is rotatably mounted behind the differential roller 19. This is rotatably supported without play on its roller pin 28 and only to cooperate with the upwardly directed track 10 of the carcass rail 3 and slightly smaller than the differential roller 19. The additional support roller 33 is used to relieve the differential roller 19 at high loads. This additional support roller 33 also has a broadened bolt head 32 ', which is supported in the region of the lower mounting portion 16 opposite edge of the recess in the first off-take portion 23 on one side of the center rail 5, at the lower edge 34' of the central portion 24th

Unterschiedliche Modifikationen sind denkbar und möglich, ohne den Bereich der Erfindung zu verlassen. So könnte sich der Bolzenkopf 32' beispielsweise im Bereich des Randes der Ausnehmung, wenn dieser Rand der Ausnehmung noch im Bereich des Abkröpfungsabschnittes 23, 25 liegt, vom Abkröpfungsabschnitt 23, 25 abgestützt werden. Am oberen und am unteren Rand der Mittelschiene könnte weiters an den Befestigungsabschnitten 15, 16 jeweils ein sich in Richtung zur Korpusschiene 3 erstreckender horizontaler Steg angeordnet sein, wobei die Laufrollen 17 bis 22 durch fensterartige Ausnehmungen in diesen horizontalen Stegen durchsetzen. Durch eine solche Ausbildung der Mittelschiene 5 könnte eine weitere Erhöhung der Seitenstabilität der Ausziehführung erreicht werden. Grundsätzlich wäre es denkbar und möglich, die Mitteilschiene auch nur mit einer Abkröpfung auszubilden, wobei die Laufrollen 18, 20 und gegebenenfalls 21 auf der einen Seite der Mittelschiene und die Laufrollen 17, 19, 22 und gegebenenfalls 33 auf der anderen Seite der Mittelschiene drehbar gelagert wären und sich die Rollenbolzen der auf den unterschiedlichen Seiten der Mittelschiene angeordneten Laufrollen in unterschiedliche Richtungen erstrecken würden. Weiters könnte die Mittelschiene, insbesondere aufgrund der verbesserten Abstützung insbesondere der Differentialrolle 19 auch kürzer als die Korpusschiene und die Auszugschiene ausgebildet werden, wobei der Abstand der hinteren Laufrolle 18 zur Differentialrolle 19 verringert sein könnte.Various modifications are conceivable and possible without departing from the scope of the invention. Thus, the bolt head 32 ', for example, in the region of the edge of the recess, if this edge of the recess is still in the region of the Abkröpfungsabschnittes 23, 25 could be supported by the Abkröpfungsabschnitt 23, 25. At the upper and at the lower edge of the middle rail could further be arranged on the mounting portions 15, 16 each extending in the direction of the carcass rail 3 horizontal web, the rollers 17 to 22 enforce through window-like recesses in these horizontal webs. By such a design of the center rail 5, a further increase in the lateral stability of the pull-out guide could be achieved. In principle, it would be conceivable and possible to form the Mitteilschiene only with a bend, the rollers 18, 20 and optionally 21 rotatably mounted on one side of the middle rail and the rollers 17, 19, 22 and optionally 33 on the other side of the center rail would be and the roller pins of the arranged on the different sides of the center rail rollers would extend in different directions. Furthermore, the center rail, in particular due to the improved support in particular the differential roller 19 could also be formed shorter than the carcass rail and the pull-out rail, wherein the distance of the rear roller 18 could be reduced to the differential roller 19.

Eine kinematische Umkehr der gezeigten Ausführungsbeispiele von Ausziehführungen wäre denkbar und möglich, wobei in diesem Fall die Korpusschiene die Auszugschiene und die Auszugschiene die Korpusschiene bilden würden. Eine solche kinematische Umkehr wird als äquivalent zu den gezeigten Ausführungsbeispielen angesehen.A kinematic reversal of the illustrated embodiments of pull-out guides would be conceivable and possible, in which case the cabinet rail would form the pull-out rail and the pull-out rail the carcass rail. Such kinematic reversal is considered to be equivalent to the embodiments shown.

Legende zu den Hinweisziffern: Legend to the reference numbers:

11
ausziehbares Möbelteilextendable furniture part
22
Möbelkorpusfurniture body
33
Korpusschienecabinet member
44
Auszugschienepull-out rail
55
Mittelschienemiddle rail
66
oberer Stegupper jetty
77
unterer Steglower jetty
88th
Seitenstegside web
99
Laufbahncareer
1010
Laufbahncareer
1111
Befestigungsstegfastening web
1212
Stegweb
1313
Laufbahncareer
1414
Laufbahncareer
1515
oberer Befestigungsabschnittupper mounting section
1616
unterer Befestigungsabschnittlower attachment section
1717
vordere Laufrollefront caster
1818
hintere Laufrollerear caster
1919
Differentialrolledifferential roller
2020
erste Stützrollefirst supporting role
2121
zweite Stützrollesecond support roller
2222
Hilfsrolleauxiliary role
2323
erster Abkröpfungsabschnittfirst off-take section
2424
Mittelabschnittmidsection
2525
zweiter Abkröpfungsabschnittsecond off-take section
2626
Führungsteilguide part
2727
Bolzenbolt
2828
Rollenbolzenroller pins
2929
NiethalsNiethals
3030
Bolzenabschnittbolt section
3131
Schultershoulder
32, 32'32, 32 '
Bolzenkopfbolt head
3333
Stützrollesupporting role
34, 34'34, 34 '
Randedge

Claims (12)

  1. Differential extension guide for extendible furniture parts, in particular drawers and shelves, having on both sides of the extendible furniture part (1) a carcass rail (3) which can be fastened to the furniture carcass (2), an extension rail (4) which can be fastened to the extendible furniture part (1), and a middle rail (5) which is arranged between the carcass rail (3) and the extension rail (4), runs differentially between them and is cranked at least via a cranked section (23, 25), running rollers (17 - 22) being provided to enable the mutual displacement of the rails (3, 4, 5), of which rollers at least one is mounted rotatably on a roller bolt (28), secured at its one end to a fastening section (15, 16) of the middle rail (5) and having at its other end a bolt head (32, 32'), and projects through an opening in the cranked section (23, 25), characterised in that for at least one of the running rollers (18, 19) the bolt head (32') of the roller bolt (28) is supported on one side on the middle rail (5) in the region of the edge, opposite the fastening section (15, 16), of the opening in the cranked section (23, 25).
  2. Differential extension guide according to Claim 1, characterised in that the bolt head (32') of the roller bolt (28) of a differential roller (19), mounted rotatably on the middle rail (5) and cooperating both with the carcass rail (3) and with the extension rail (4), is supported on one side on the middle rail (5).
  3. Differential extension guide according to Claim 1, characterised in that the bolt head (32') of the roller bolt (28) of a rear roller (18), mounted rotatably on the middle rail (5) and cooperating with the carcass rail (3), is supported on one side on the middle rail (5).
  4. Differential extension guide according to one of Claims 1 to 3, characterised in that at least one cranked section (23, 25) of the middle rail (5) is arranged in a region of the middle rail (5) lying between the upper and lower edge of the middle rail (5).
  5. Differential extension guide according to one of Claims 1 to 4, characterised in that the middle rail (5) has first and second cranked sections, a lower fastening section (16) being connected to a middle section (24) via the first cranked section (23) and the middle section (24) being connected to the upper fastening section (15) via the second cranked section (25). (Fig. 9)
  6. Differential extension guide according to Claim 5, characterised in that the widened bolt head (32') extends as far as the middle section (24) when seen in plan view.
  7. Differential extension guide according to Claim 6, characterised in that the bolt head (32') of the roller bolt (28) bears on the edge (34') of the middle section (24) of the middle rail (5) or on the edge (34) of a prolongation of the middle section (24) of the middle rail (5).
  8. Differential extension guide according to one of Claims 1 to 7, characterised in that the width (b) of the bolt head (32') supported on the middle rail (5) is at least half the width (B) of the running roller (18, 19) mounted on this roller bolt (28). (Fig. 5)
  9. Differential extension guide according to one of Claims 1 to 8, characterised in that the extension rail (4) has a web (12) which projects into the region between the first and second cranked section (23, 25) and forms upwardly and downwardly directed running paths (13, 14), and the carcass rail (3) has webs (6, 7) which lie above and below the middle rail (5) and form downwardly and upwardly directed running paths (9, 10).
  10. Differential extension guide according to one of Claims 5 to 9, characterised in that the roller bolt (28) of the differential roller (19) is secured on one side to the lower fastening section (16).
  11. Differential extension guide according to one of Claims 5 to 10, characterised in that the roller bolt (28) of the rear running roller (18) is secured on one side to the upper fastening section (15).
  12. Differential extension guide according to one of Claims 1 to 11, characterised in that all the running rollers (17 - 22) are mounted rotatably on the middle rail (5) on the side of the middle rail (5) facing the carcass rail (3).
EP03007746A 2002-05-06 2003-04-04 Differential slide for extensible furniture parts Expired - Lifetime EP1360914B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT6952002 2002-05-06
AT0069502A AT412182B (en) 2002-05-06 2002-05-06 DIFFERENTIAL EXTENSION GUIDE FOR EXTENDABLE FURNITURE PARTS

Publications (2)

Publication Number Publication Date
EP1360914A1 EP1360914A1 (en) 2003-11-12
EP1360914B1 true EP1360914B1 (en) 2007-05-16

Family

ID=29220196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03007746A Expired - Lifetime EP1360914B1 (en) 2002-05-06 2003-04-04 Differential slide for extensible furniture parts

Country Status (4)

Country Link
EP (1) EP1360914B1 (en)
AT (2) AT412182B (en)
DE (1) DE50307272D1 (en)
ES (1) ES2286349T3 (en)

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Publication number Priority date Publication date Assignee Title
DE10308457A1 (en) * 2003-02-21 2004-09-02 Heinrich J. Kesseböhmer KG Pull-out fitting, especially for kitchen furniture
AT505053B1 (en) * 2007-04-02 2009-02-15 Fulterer Gmbh ROLLER Differential extension
ATE481014T1 (en) * 2008-07-28 2010-10-15 Icas S R L OVERHANG GUIDE FOR EXTENDABLE DRAWERS
AT512897B1 (en) 2012-10-02 2013-12-15 Fulterer Gmbh Pull-out guide for a piece of furniture which can be pulled out of a furniture carcass
AT513608B1 (en) 2013-03-12 2014-06-15 Fulterer Gmbh Pull-out guide for a piece of furniture which can be pulled out of a furniture carcass
AT514559B1 (en) * 2013-08-19 2015-02-15 Fulterer Gmbh pull-out
AT519752B1 (en) * 2017-05-19 2018-10-15 Fulterer Ag & Co Kg pull-out
CN114754543B (en) * 2021-01-08 2023-11-07 青岛海尔电冰箱有限公司 Drawer door body and refrigerator
CN112998457A (en) * 2021-03-18 2021-06-22 广东库博精密科技有限公司 High-bearing three-rail type guide rail structure suitable for high-depth pull basket

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US2859070A (en) * 1954-05-21 1958-11-04 Mc Graw Edison Co Extension hanger for cabinet drawer
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DE2448335A1 (en) * 1973-11-02 1976-04-22 Martin Greeb Drawer guide with two guide rail system and rollers - has extra guide channels sufficiently deep for securing standard shape rollers
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AT412182B (en) 2004-11-25
ATA6952002A (en) 2004-04-15
DE50307272D1 (en) 2007-06-28
EP1360914A1 (en) 2003-11-12
ATE362337T1 (en) 2007-06-15
ES2286349T3 (en) 2007-12-01

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